Webster's Revised Unabridged Dictionary · 1913

Kyrie eleison

Kyrie eleison , noun and interjection

[Greek ky`rie 'elei^son.]

1.
(Roman Catholic Church) Greek words, meaning “Lord, have mercy upon us,” used in the Mass, the breviary offices, the litany of the saints, etc. — Addis & Arnold
2.
The name given to the response to the Commandments, in the service of the Church of England and of the Protestant Episcopal Church.